S2.3 The metallic model Quiz
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5 questions, one answer each
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1. Which metal has the strongest metallic bonding?
- A. Potassium
- B. Sodium
- C. Magnesium
- D. Aluminium
2. Which property of metals is best explained by the non-directional nature of metallic bonding?
- A. High density
- B. Malleability
- C. Shiny surface
- D. High boiling point
3. What moves through a copper wire to carry an electric current?
- A. Cu²⁺ ions
- B. Protons
- C. Delocalised electrons
- D. Copper atoms
4. Why does the melting point decrease from lithium to caesium?
- A. The ionic charge decreases
- B. The ionic radius increases
- C. The number of delocalised electrons per atom increases
- D. The bonding changes from metallic to covalent
5. Which change would make a metallic bond stronger?
- A. Larger cation with the same charge
- B. Fewer delocalised electrons per atom
- C. Smaller cation with a higher charge
- D. Lower charge density